top-up

n.补充的饮料；追加款项

v.装满；充值

adj.额外的

网络释义：顶腾；加额

adj.additional

网络释义

n.1.补充的饮料2.追加款项,收入补贴

adj.1.额外的,附加的

v.1.补充,装满;充值

n.1.an amount of pquid added to a glass or cup in order to fill it, mainly used in British Engpsstrong.an amount of money added to other money in order to reach the necessary level

adj.1.additional

v.1.to add more to sth. in order to increase it to the level that you want or need

1.充值 System.out.println 查看余额，体现封装 account.Topup 充值 account.Topup 充值，体现 …

2.顶腾 ... Prepaid Pack 预付配套 Topup 加额 Postpaid Pack 后付配套 ...

1.Helen: Generally speaking to top up means to refill a container until it is full again.一般来说，topup是个动词，表示把一个容器填满，就是续杯的意思。